TypeError: 'NoneType' object is not subscriptable

[ndbiaw]

  File "C:\Users\[REDACTED]\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_[REDACTED]\LocalCache\local-packages\Python37\site-packages\flask\app.py", line 2091, in __call__
    return self.wsgi_app(environ, start_response)
  File "C:\Users\[REDACTED]\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_[REDACTED]\LocalCache\local-packages\Python37\site-packages\flask\app.py", line 2076, in wsgi_app
    response = self.handle_exception(e)
  File "C:\Users\[REDACTED]\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_[REDACTED]\LocalCache\local-packages\Python37\site-packages\flask\app.py", line 2073, in wsgi_app
    response = self.full_dispatch_request()
  File "C:\Users\[REDACTED]\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_[REDACTED]\LocalCache\local-packages\Python37\site-packages\flask\app.py", line 1518, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "C:\Users\[REDACTED]\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_[REDACTED]\LocalCache\local-packages\Python37\site-packages\flask\app.py", line 1516, in full_dispatch_request
    rv = self.dispatch_request()
  File "C:\Users\[REDACTED]\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_[REDACTED]\LocalCache\local-packages\Python37\site-packages\flask\app.py", line 1502, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
  File "D:\[REDACTED]\Google_form_spammer_flask-master\run.py", line 16, in gform
    fields = get_fields(link)
  File "D:\Google_form_spammer_flask-master\Google_form_spammer_flask-master\googleform.py", line 22, in get_fields
    data = json.loads(data[27:-1])[1]
TypeError: 'NoneType' object is not subscriptable